Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:44:17 2013 Optimize a model with 1220 rows, 1832 columns and 2440 nonzeros Model has 610 quadratic constraints Presolve time: 0.00s Presolved: 1220 rows, 1832 columns, 2440 nonzeros Presolved model has 610 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 1.830e+03 Factor NZ : 4.273e+03 (roughly 1 MByte of memory) Factor Ops : 1.526e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 5.07055034e+05 0.00000000e+00 2.84e-14 4.60e-01 2.87e+02 0s 1 9.99828868e+04 2.05734755e+04 5.22e-09 4.91e-05 4.34e+01 0s 2 7.54741979e+04 6.03963836e+04 1.59e-08 8.20e-06 8.24e+00 0s 3 6.89830293e+04 6.73657990e+04 1.12e-08 1.49e-06 8.84e-01 0s 4 6.79560173e+04 6.78598660e+04 4.79e-10 1.30e-07 5.25e-02 0s 5 6.79046521e+04 6.78987343e+04 7.56e-11 7.82e-09 3.23e-03 0s 6 6.79036228e+04 6.79030296e+04 2.33e-09 2.27e-09 3.24e-04 0s 7 6.79033841e+04 6.79031206e+04 3.44e-10 1.59e-09 1.44e-04 0s 8 6.79033591e+04 6.79033334e+04 1.58e-10 2.90e-11 1.41e-05 0s Barrier solved model in 8 iterations and 0.03 seconds Optimal objective 6.79033591e+04